Plessis, New York Demographics & Population 2026

A note before these figures: with a population of 176, Plessis's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Plessis is a small community located in New York, within Jefferson County. The total population is 176. It ranks as the 1225th most populous out of 1,289 Census-designated places in New York.

Age Demographics

The median age in Plessis is 52.2 years. This is 31% higher than the state median of 39.8 years.

Economy, Income & Housing

The median household income in Plessis is $155,053. This is 80% higher than the state median of $85,974. It is also 92% higher than the national median of $80,734. The ACS records no residents below the poverty line in Plessis. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Plessis, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $152,100. Housing costs are 64% lower than the state median of $423,800. With a home-value-to-income ratio of just 1.0x, Plessis is one of the most affordable housing markets in the area. 95.7% of occupied housing units are owner-occupied. This homeownership rate is 76% higher than the state average of 54.4%.

Race & Ethnicity

Plessis has a predominantly White (non-Hispanic) population, comprising 87.5% of all residents. The White (non-Hispanic) population is significantly higher than the state average (87.5% vs 52.8%).

Education

14.5% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 64% lower than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.2%.

Data Sources & Methodology

All demographic data for Plessis, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.